[Coco] Using Rick Adam's DELPHIterm 3.1 to connect a Coco3 to a TRS80 PT210

Arthur Flexser flexser at fiu.edu
Wed Oct 17 15:34:51 EDT 2018


Don't forget that Basic's printer baud rate defaults to 600, not 300.  POKE
150,180 sets it to 300.

Art

On Wed, Oct 17, 2018 at 2:26 PM, rietveld rietveld <rietveldh at hotmail.com>
wrote:

> That would be great if someone knows the POKES.   I am trying to get the
> printer part of the PT210 to work as a standard printer for use with a Coco
> word processor. Right now I have to use a terminal program to 'DUMP' the
> text file to the PT so that it will print it
>
> On a side note I am able to connect the PT210 to my modern windows
> computer using a usb to dB25.     The computer sees the PT210.
>
> Sent from my BlackBerry
>   Original Message
> From: Arthur Flexser
> Sent: Wednesday, October 17, 2018 2:08 PM
> To: CoCoList for Color Computer Enthusiasts
> Reply To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Using Rick Adam's DELPHIterm 3.1 to connect a Coco3 to
> a TRS80 PT210
>
>
> PRINT #-2 is creating the same thing (a sequence of byte values) as a
> terminal program outputs for text.  The problem is likely either that the
> baud rate disagrees with the one the printer is expecting, or else that
> Basic's printer output routine isn't receiving the "printer ready" status
> that tells it that the next byte can be transmitted.  This check for
> printer status can be knocked out with a poke or two that I don't have
> handy, but I'm sure someone can tell you what is needed for that.
>
> Art
>
> On Wed, Oct 17, 2018 at 1:51 PM, rietveld rietveld <rietveldh at hotmail.com>
> wrote:
>
> > Good advice Arthur and John.
> > But the PT210 will not work explicitly in printer mode (as far as I can
> > tell). It seems to need the text outputed via a terminal program rather
> > than the normal PRINT #-2.
> > I think this is because the printer is acting as the screen for the text
> > that the terminal is receiving?
> >
> > Sent from my BlackBerry
> >   Original Message
> > From: Arthur Flexser
> > Sent: Wednesday, October 17, 2018 1:36 PM
> > To: CoCoList for Color Computer Enthusiasts
> > Reply To: CoCoList for Color Computer Enthusiasts
> > Subject: Re: [Coco] Using Rick Adam's DELPHIterm 3.1 to connect a Coco3
> to
> > a TRS80 PT210
> >
> >
> > Many basic printers of that era had a dip switch that selected whether
> the
> > printer would do a linefeed on CR alone, as the CoCo generally outputs,
> or
> > whether the printer required an explicit linefeed character in addition
> to
> > the CR.  Have you checked the docs for whether that option is available?
> > If the printer was doing carriage returns only with no linefeed,
> > overwriting each line with the next line, the wrong dip switch setting
> > might be where the problem lies.
> >
> > If there is no dip switch, it is also possible that the printer accepts
> > some sort of control code (usually an escape byte plus another byte or
> two)
> > that will put it into the mode for generating an automatic linefeed when
> > sent a carriage return.
> >
> > Art
> >
> > On Wed, Oct 17, 2018 at 1:20 PM, rietveld rietveld <
> rietveldh at hotmail.com>
> > wrote:
> >
> > >
> > > All very good points but the reason I made the video was to show that
> > > DELPHITERM was the only terminal program that I could get to properly
> > work
> > > with the PT210 The deluxe rs232 paks terminal program works but will
> not
> > > issue a proper carriage return. The paper would not advanced up unless
> > the
> > > terminal program transmitted a full 80 characters, either full or blank
> > > DelphiTerm did work after I setup the basic loader with the terminal
> > > settings including the PT210 s max baud rate of 300
> > >
> > >
> > > Sent from my BlackBerry
> > >   Original Message
> > > From: Salvador Garcia via Coco
> > > Sent: Wednesday, October 17, 2018 11:10 AM
> > > To: CoCoList for Color Computer Enthusiasts
> > > Reply To: CoCoList for Color Computer Enthusiasts
> > > Cc: Salvador Garcia
> > > Subject: Re: [Coco] Using Rick Adam's DELPHIterm 3.1 to connect a Coco3
> > to
> > > a TRS80 PT210
> > >
> > >
> > >  And if you get any alcohol on the printout, the fading will be
> > > instantaneous.  :-D
> > >
> > > The only way to be sure is to either scan the thermal printout or get a
> > > copy of it using a tried and true copy machine.
> > >
> > > Salvador
> > >     On Wednesday, October 17, 2018, 2:09:15 AM CDT, Gene Heskett <
> > > gheskett at shentel.net> wrote:
> > >  <snip>
> > >  Just be aware that those thermal paper printouts have a very poor
> shelf
> > > life, fading into the sunset in 6 months or less. Higher storage temps
> > > and light exposure hasten this, a lot.  So don't figure on going back
> > > and refreshing you memory by re-reading it 2 years later.
> > >
> > > <snip>
> > >
> > > --
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